Screening for H. pylori is recommended for those with a family history of stomach cancer. People with a family history of gastric cancer are at high risk of developing gastric cancer, so it is very meaningful for them to be screened for H. pylori, and if they are found to be positive, they should be treated as soon as possible to reduce the incidence of gastric cancer. Patients who have to take oral aspirin for a long time are recommended to be screened for H. pylori. H. pylori infection can increase the risk of upper gastrointestinal bleeding in patients. As for the rest of the general healthy population, there is little point in going for screening for H. pylori, but instead finding out that it is positive increases nervousness. For people with frequent upper abdominal distention and pain and a history of gastritis, the preferred test is not H. pylori, but rather gastroscopy, which can prevent the underdiagnosis of gastric cancer, cardia cancer and other malignant diseases of the digestive tract.